support Python 3.14

[ThomasWaldmann]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.04%. Comparing base (394cec6) to head (2924fc5).
Report is 8 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8919   +/-   ##
=======================================
  Coverage   82.04%   82.04%           
=======================================
  Files          77       77           
  Lines       13491    13491           
  Branches     1996     1996           
=======================================
  Hits        11069    11069           
  Misses       1757     1757           
  Partials      665      665           

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[ThomasWaldmann]

Bug in Python 3.14b2?

  File "/home/runner/work/borg/borg/src/borg/archiver/create_cmd.py", line 472, in _rec_walk
    with OsOpen(
         ~~~~~~^
        path=path, parent_fd=parent_fd, name=name, flags=flags_dir, noatime=True, op="dir_open"
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ) as child_fd:
    ^
  File "/opt/hostedtoolcache/Python/3.14.0-beta.2/x64/lib/python3.14/contextlib.py", line 162, in __exit__
    self.gen.throw(value)
    ~~~~~~~~~~~~~~^^^^^^^
  File "/home/runner/work/borg/borg/src/borg/archive.py", line 254, in OsOpen
    yield fd
TypeError: _pystart_callback expected 2 arguments, got 3

https://github.com/borgbackup/borg/actions/runs/15610099353/job/43968754179#step:8:4934

[ThomasWaldmann]

Now only test_debug_profileis failing, likely due to a bug in stdlibcProfile.Profile`.